(3aS,5aS,6R,9aR,9bS)-Dodecahydro-3a,6-dimethyl-3,7-dioxo-1H-benz[e]indene-6-propanoic Acid 4-Nor-3,5-seco-5,17-dioxoandrostan-3-oic Acid 5,17-Dioxo-3,5-seco-A-norandrostan-3-oic Acid 6857-88-1 [3aS-(3a|A,5a|A,6|A,9a|A,9b|A)]-Dodecahydro-3a,6-dimethyl-3,7-dioxo-1H-benz[e]indene-6-propanoic Acid CAS 6857-88-1

Purity 97%+In StockPharmaceutical Standards
CAS No.6857-88-1
Molecular FormulaC18H26O4
Molecular Weight306.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(3aS,5aS,6R,9aR,9bS)-Dodecahydro-3a,6-dimethyl-3,7-dioxo-1H-benz[e]indene-6-propanoic Acid 4-Nor-3,5-seco-5,17-dioxoandrostan-3-oic Acid 5,17-Dioxo-3,5-seco-A-norandrostan-3-oic Acid 6857-88-1 [3aS-(3a|A,5a|A,6|A,9a|A,9b|A)]-Dodecahydro-3a,6-dimethyl-3,7-dioxo-1H-benz[e]indene-6-propanoic Acid CAS 6857-88-1 chemical structure

Description

The molecular framework of (3aS,5aS,6R,9aR,9bS)-Dodecahydro-3a,6-dimethyl-3,7-dioxo-1H-benz[e]indene-6-propanoic Acid 4-Nor-3,5-seco-5,17-dioxoandrostan-3-oic Acid 5,17-Dioxo-3,5-seco-A-norandrostan-3-oic Acid 6857-88-1 [3aS-(3a|A,5a|A,6|A,9a|A,9b|A)]-Dodecahydro-3a,6-dimethyl-3,7-dioxo-1H-benz[e]indene-6-propanoic Acid (C18H26O4) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

CATO supplies (3aS,5aS,6R,9aR,9bS)-Dodecahydro-3a,6-dimethyl-3,7-dioxo-1H-benz[e]indene-6-propanoic Acid 4-Nor-3,5-seco-5,17-dioxoandrostan-3-oic Acid 5,17-Dioxo-3,5-seco-A-norandrostan-3-oic Acid 6857-88-1 [3aS-(3a|A,5a|A,6|A,9a|A,9b|A)]-Dodecahydro-3a,6-dimethyl-3,7-dioxo-1H-benz[e]indene-6-propanoic Acid (CAS 6857-88-1), a certified reference material (molecular formula C18H26O4, MW 306.40 g/mol) for analytical method development and quality control.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC18H26O4
Molecular Weight306.40 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958

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